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Terminal Speed for Various Objects Falling Through AirMass Cross-Sectional Area vTObject (kg) (m2) (m/s)Skydiver 75 0.70 60Baseball(radius 3.7 cm) 0.145 4.2 10-3 43Golf ball (radius 2.1 cm) 0.046 1.4 10-3 44Hailstone (radius 0.50 cm) 4.8 10-4 7.9 10-5 14Raindrop (radius 0.20 cm) 2.4 10-5 1.3 10-5 9.0
A pitcher hurls a 0.145-kg baseball past a batter at 39.5 m/s (= 88 mi/h). Find the resistive force acting on the ball at this speed.
A baseball is dropped from a 28 m high building.(a) Calculate the speed of the ball just before it hits the ground ignoring air resistance.
(b) Calculate the air drag force that acts on a baseball traveling at this speed. Give your answer as a fraction of the gravitational force that acts on the ball. (In reality the speed of the baseball will be slower because we cannot ignore air resistance for the entire fall.)R = multiplied by mg?
a ball is shot vertically into the air 50 m/s 108m from the ground. 6 seconds later, another ball is shot vertically into the air 20 m/s 58m from the ground. Find the distance where they meet in the air from the ground.
a liquid-vapor phase change process in microgravity conditions is carried out sufficiently slowly so that a one
Construct a suitable finite element model and compare the FEA predictions with the theoretical data and produce a graph to show the stress distribution
on average in the u.s. carson light trucks vans and slpvs are driven about 15000 exiles per year. the average fuel
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What is the wear coefficient of the bearing material in m2N-1 ?
at the beginning of the compression stage in an air-standard diesel cycle the conditions are p 200 kpa and t 380k. the
to determine the viscosity of a liquid of density 948 kgm3 you fill to a depth of 12 cm a large container whichdrains
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